Wire fabric



5. F. PINK WIRE FABRIC Nov. 12, 1929.

Filed March 15; 1928 2 Sheets- Sheet l INVENTOR ATTORNEY WITNESS:

Nov. 12, 1929 PiNK 1,735,788

' WIRE manrc Filed March 15. 1928 2 Sheets-Sheet 2 cue-{f W 4mm,INVENTOR VI-E55: ATTORNEY Patented Nov. 12, 1929 EDWARD PINK, OFCAMBRIDGE, MARYLAND WIRE FABRIC Application filed March 15, 1928. SerialNo. 261,868.

This invention relates to improvements in wire fabric which isparticularly designed for use as conveyor belts, aprons, screens, andthe like; the generalobject of the invention being to produce a wirefabric of maximum flexibility and great tensile strength and one inwhich the interstices are very small.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawings,and specifically pointed out in the appended claim.

In-describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote likeorcorresponding parts throughout the several views, and in which Fig. 1 isa perspective view, showing the improved fabric used as a conveyor belt;

Fig. 2 is an enlarged detail view showing how the fabric is formed;

Fig. 3 is a View showing how two left-hand spirals are connectedtogether by a rod with a right-hand spiral between them;

Fig. 4 is a view of one of the left-hand spirals; i Fig. 5 is a view ofa right-hand'splral;

Fig. 6 is a view of one of the staples;

Fig. 7 is an end view of portion of the fabric; and

Fig. 8 is a sectional view through part of the fabric.

As shown in these drawings, the fabric is composed of a plurality ofspiral coils of wires 1 and 2, which may be termed the warp of thefabric, and the staples 3 which connectthe spirals together. The spirals1 have their coils inclining to the leftor are left-hand spirals whilethe coils of the spirals 2 incline to the right or are right-handspirals, and the spirals 1 are alternately arranged with the spirals 2with one limb 3 of each staple connecting together each pair of thespirals 1, andthe' other limb 3 of each staple connecting together eachpair of the spirals 2. As shown, the spirals are flattened and the limbsof the staples pass through the. vertices of the spirals, and theselimbs als pass through the spirals, the vertices of whici are. engagedby the opposite limbs, intermediate the ends of said other spirals, withparts of each spiral entering the spaces between the coils of theadjacent spirals. Thus the parts are closely arranged together as shownin the drawings to provide a fabric, the interstices in which are verysmall.

The closed ends of the staples prevent any portion of the coiled wirefrom being unwound at the ends, and the extremities of the staples maybe bent around the outer coils of the spirals to hold the staples inplace and to prevent the coils from unwinding adj :icent the free endsofthe limbs of the stap es.

As before stated, this arrangement of parts produces a wire fabric ofopen mesh and which has great flexibility and tensile strength. Thefabric can be made endless and used as a conveyor belt, as shown at A inFig. 1, or its ends may be separated if desired. A

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claim.

What I claim is A wire fabric formed of wires twisted into spiral shape,some of the spirals being righthand ones and others left-hand ones, theright-hand spirals being alternately ar ranged with respect to theleft-hand spirals,

and staple-shaped wires connecting the spirals together, one limb ofeach staple passing through the vertices of each pair of righthandspirals, and the other limb of each staple passing through the verticesof each pair of left-hand spirals.

In testimony whereof I afiii: my signature.

EDWARD F. PINK.

